[1597293] Preliminary greedy-explore, parked on Ctrl-I. We can (re)move it if necessary.

Stash-tracking is no longer #ifdef conditionalised. I'm not aware of anybody who compiles without it.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@538 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on December 1, 2006
547JREUJXTZNYVGHNNAET5F5O5JYYGNTDQB6ABZNT7YX5EY64OHAC
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